Hello,
Below is the orginal message the fix was firmware updates from hitachi.
Hitachi now forms unique wwids for each lun and it is configured such that
it will not change. This seems to have solved the problem.
jim jones
-----------original message -----------------------
Hello,
We have started to see several annoying problems and wondered if any other
hitachi users are seeing the same problem. What we are seeing is that
after a reboot sometimes, the targets are changing on us. For example,
when we initially set up a system the disk will look as follows and dual
pathing seems to work fine.
bus 3 target 3 lun 38 and bus 2 target 3 lun 38
after the reboot sometimes the target changes to ( below is an example),
when the target changes it affects all the fiber attached drives on the
system.
bus 3 target 2 lun 38
bus 3 target 4 lun 38
We are using Compaq fiber cards in a fabric topology connected thru a
brocade switch.
We are attempting to work with compaq to see if we have a software bug and
we are working with hitachi to determine if we have a problem on there side
also.
I have include the ddr.dbase entry for hitachi, so others that are using
hitachi can tell us if it is the same entry they are using.
The bottom line question is has any hitachi users seen this type of
problem? We are only seeing this with dual fiber attached systems running
5.1 at various patch levels, most are at patch level 2.
SCSIDEVICE
# HITACHI 7700E
#
Type = disk
Name = "HITACHI" "7700"
PARAMETERS:
TypeSubClass = hard_disk, raid
BlockSize = 0
BadBlockRecovery = disabled
DynamicGeometry = true
DisperseQueue = false
LongTimeoutRetry = enabled
ReadyTimeSeconds = 60
TagQueueDepth = 2
InquiryLength = 160
RequestSenseLength = 160
PwrMgmt_Capable = false
ATTRIBUTE:
AttributeName = "VPDinfo"
Length = 16
ubyte[5] = 11
Thanks
jim jones
Received on Wed May 02 2001 - 19:46:30 NZST